Donald Sullivan was the older brother of Mickey Sullivan. The two lead the Sullivan Crime Family, based in Gotham City. Donald, Mickey, and several members of The Irish Gang were hired to kill Harvey Dent by Carmine Falcone. The gangsters attempted to kill Dent and his wife with a powerful Nail Bomb, but Dent survived, and the gang was arrested. Donald, Mickey, and the gang were gunned down in a hotel, the following Thanksgiving by a killer named Holiday.



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